**Here are 10 examples of using the word «doubt» in English:**
1. I have some doubts about his ability to finish the project on time.
2. She expressed doubt that the weather would be good for the picnic.
3. He tried to hide his doubts, but I could tell he was nervous.
4. There is no doubt in my mind that she will succeed in her career.
5. I have serious doubts about the validity of the research findings.
6. He expressed doubt about the company's ability to meet its financial goals.
7. She had doubts about her decision to move to a new city.
8. There is some doubt as to whether the meeting will take place next week.
9. He had no doubt that he would be able to solve the problem.
10. She expressed her doubts about the accuracy of the information provided.